Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Geometrical Optics question

2021 · 22 Jul · Shift 2 · Q59
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Physics
  4. /Geometrical Optics
  5. /2021 · 22 Jul · Shift 2 · Q59

Geometrical Optics question

2021 · 22 Jul · Shift 2 · Q59

JEE MainPhysicsGeometrical OpticsMCQ+4 / −1
A ray of light passes from a denser medium to a rarer medium at an angle of incidence i. The reflected and refracted rays make an angle of 90 ∘^\circ∘ with each other. The angle of reflection and refraction are respectively r and r'. The critical angle is given by JEE Main 2021 (Online) 22th July Evening Shift Physics - Geometrical Optics Question 140 English
  1. A
    sin −-− 1 (tan r)
  2. B
    sin −-− 1 (cot r)
  3. C
    sin −-− 1 (tan r')
  4. D
    tan −-− 1 (sin i)
PreviousNext

More from Geometrical Optics

  • A ray of light passing through a prism (μ=3​) suffers minimum deviation. It is found that the angle of incidence is double the angle of refraction within the prism. Then, the angle of prism is ​ (in…2021 · Numerical
  • The focal length f is related to the radius of curvature r of the spherical convex mirror by :2021 · MCQ
  • The same size images are formed by a convex lens when the object is placed at 20 cm or at 10 cm from the lens. The focal length of convex lens is ​ cm.2021 · Numerical
  • A ray of laser of a wavelength 630 nm is incident at an angle of 30 ∘ at the diamond-air interface. It is going from diamond to air. The refractive index of diamond is 2.42 and that of air is 1. Choose the correct option.2021 · MCQ
  • A prism of refractive index μ and angle of prism A is placed in the position of minimum angle of deviation. If minimum angle of deviation is also A, then in terms of refractive index2021 · MCQ
  • A ray of light entering from air into a denser medium of refractive index 34​, as shown in figure. The light ray suffers total internal reflection at the adjacent surface as shown. The maximum value of angle θ should be… Includes diagram2021 · MCQ
  • Car B overtakes another car A at a relative speed of 40 ms − 1. How fast will the image of car B appear to move in the mirror of focal length 10 cm fitted in car A, when the car B is 1.9 m away from the car A?2021 · MCQ
  • An object is placed at a distance of 12 cm from a convex lens. A convex mirror of focal length 15 cm is placed on other side of lens at 8 cm as shown in the figure. Image of object coincides with the object. When the convex mirror is… Includes diagram2021 · Numerical